svar high response valve closed loop electronic control for

© 2003by Bosch Rexroth AG, Industrial Hydraulics, D-97813 Lohr am Main

All rights reserved. No part of this document may be reproduced or stored, processed, duplicated or circulated usingelectronic systems, in any form or by any means, without the prior written authorisation of Bosch Rexroth AG.In the event of contravention of the above provisions, the contravening party is obliged to pay compensation.

VTS 0940; VTS 0941; VTS 0942 1/26 RE 29 799/08.95

Summary of contents

Contents PageSVAR closed loop electronic control

• General 1• Technical data 2• Project planning/maintenance notes 2• Ordering code 3• "Axis ready" signal 4

SVAR closed loop electronic control, type VTS 0940-2X/...• Functional description 5• Connection diagram, unit dimensions 6



Interfaces• Control, analogue position measuring system,

pressure sensor 11• Input/output cards, valves 12

Individual cards• NT 3 power supply 13-14• NT 4 power supply 15-16• AR 1 analogue closed loop position control 17-19• XPL 1 closed loop pressure control card 20-22• Input/outputs cards EA1 and EA2 23-26

RE 29 799/08.03Replaces: 08.95

SVAR high response valve closed loopelectronic control for analogue closedloop position and pressure control ofservo hydraulic systemsTypes VTS 0940, VTS 0941 and VTS 0942

Type VTS 0941-2X/...

H/A

4153

/94

Merkmale

SVAR closed loop electronic controls are compact, ready-to-connectcartridges. They are used in association with PLC controls to provideclosed loop analogue position or pressure control of electro-hydraulicdrives. The SVAR closed loop electronic control forms the interfacebetween the PLC control and the servo hydraulic linear or rotary drive.The cartridge is equipped with 100 x 160 mm modular Euro cards. TheSVAR closed loop electronic control can be supplied in three basicdesigns.

– Compact, ready-to-connect cartridge with modularassemblies

– Analogue command signal input and actual signalmeasurement via differential inputs

– Both command signals for position and differential pressureand actual signals may be processed as voltages from 0to +10V or as currents from 0 to 20 mA or 4 to 20 mA.

– Combination of closed loop position and pressure control(VTS 0941) possible

– Connection to PLC via opto-decoupled inputs/outputs– Simple, easy to reproduce settings of parameters due to

digital control– Connection of inputs and outputs via front terminal

connections

Types available:VTS 0940-2X/...– For closed loop position control of a single axis

VTS 0941-2X/...– For closed loop position and pressure control of a single

axis with switching logic

VTS 0942-2X/...– For closed loop pressure control of a single axis

RE 29 799/08.95 2/26 VTS 0940; VTS 0941; VTS 0942

Technical data (For applications outside these parameters please consult us!)

Supply voltage

– External operating voltage UB 115/230 VAC; 50 to 60 Hz; 60 VAor UB + 24 VDC ± 10 %; 2 to 4 A

– Internal operating voltages UM ± 15 V and + 5 V

Valve command signal ucom ± 10 V; 5 mAor icom ± 10 mA; load 1 kΩ (optional)

Inputs/outputs

– Input resistance Ri 10 kΩ– Differential inputs ui ± 10 V

or ii 0 to 20 mA or 4 to 20 mA; load 500 Ω– Control signal inputs (fan in) +15 to 24 V; 3,3 kΩ; opto-decoupled

– Control signal outputs (fan out) +15 to 24 V; max. 8 mA total; opto-decoupled

"Axis ready" signal Potential free relay contact

– Contact loading I 2 ADC; Ieff = 2 A

– Switching power P 30 W / 60 VA

Permissible ambient temperature t 0 to + 50 °C

Storage temperature t – 20 to + 70 °C

Dimensions (B x H x T) – VTS 0940-2X 145 x 183 x 285 mm– VTS 0941-2X 186 x 183 x 285 mm– VTS 0942-2X 145 x 183 x 285 mm

Weight – VTS 0940-2X m 3,0 kg– VTS 0941-2X m 3,5 kg– VTS 0942-2X m 3,0 kg

– The cards may only be plugged or unplugged with the power switched off.

– Measurements should only be taken using instruments with Ri > 100 kΩ.

– Command signals may only be switched via relays with gold contacts (small voltages, small currents).

– Always screen command signal cables for valves with integral electronics or external valve amplifiers. Leave one end of screenopen. Connect card end to 0V supply voltage (GND).

– Signals to be screened should not be routed through a common cable.

– Connect command signal line screens on control side.

– Radio transmitters may not be used within 1 m of this card.

– Supply and return lines must not be installed in the vicinity of power lines.

Note!

Electrical signals (e.g. actual signals) generated by control electronics may not be used to switch off safety dependent machine functions. (c.f.European standard "Safety requirements of fluid technological systems and components", issue prEN 982)

Project planning / maintenance notes

VTS 0940; VTS 0941; VTS 0942 3/26 RE 29 799/08.95

Further details in clear text

E = Input/output card EA1 withvalve amplifier output stage for

servo valve 4WS2EM6-1X/…F12…with mechanical feedback

F = Input/output card EA1 withvalve amplifier output stage for

servo valve 4WS2EM10-4X/…B2…with mechanical feedback

G = Input/output card EA1 withvalve amplifier output stage for


D = Input/output card EA2 withoutvalve amplifier output stage forvalves with integral electronics

e.g. 4WRDE...24V4WRTE...4WRS6... + module amplifier4WSE2... or 4WSE3E

Analogue closed loop position control = 0Analogue closed loop position control andclosed loop pressure control = 1Analogue closed loop pressure control = 2

Series 20 to 29 = 2X(20 to 29: externally interchangeable)

External supply voltages:115 VAC; 50 or 60 Hz (only for 4WS2EM, Size 6 to 16) = W115230 VAC; 50 or 60 Hz (only for 4WS2EM, Size 6 to 16) = W230+ 24 VDC (only for valves with integral electronics) = G24

e.g. 4WRDE…24V4WRTE…4WRS6… + module amplifier4WSE2… or 4WSE3E

Ordering code

*VTS 094_ – 2X / /

RE 29 799/08.95 4/26 VTS 0940; VTS 0941; VTS 0942

15

14

15c

15a

15a

15c

15a

15c

X1

15

14

15c

15a

15a

15c

15a

15c

X1

15

14

15c

15a

15a

15c

X1

15a

15c

15a

15c

All cards plugged in and internal supply voltages available.

SVAR closed loop electronic control ("Axis ready" signal)

VTS 0940-2X/...

VTS 0941-2X/...

VTS 0942-2X/...

EA1or

EA2

BUS

Axisready

AR1

Power supplyNT3/NT4

Voltagemonitor

Power supplyNT3/NT4

Voltagemonitor

AR1

XPL1

Axisready

EA1or

EA2

XPL1

Axisready

BUS

BUS

EA1or

EA2

Power supplyNT3/NT4

Voltagemonitor

VTS 0940; VTS 0941; VTS 0942 5/26 RE 29 799/08.95

SPS

I/O 24 V

D

A

NT3/NT4

=

AR1 VTS 0225 EA1/EA2

p / Q

su,i

I/O

PDT1

PLC

NT3 power supply

– Voltages for the closed loop electronic control aregenerated from 115 V or 230 V mains supply.• + 5 V• ± 15 V• ± 24 V

– All voltages are monitored (relay contact)

NT4 power supply

– Voltages for the closed loop electronic control aregenerated from + 24 V ± 10 % supply voltage.• + 5 V• ± 15 V


Input/output cards EA1 or EA2

– Direction dependent gain matching– Signal to PLC: "Axis ready"– EA1: Valve output stage for servo valves with mechanical

feedback– EA2: Interface for integral valve electronics

Command position

PLC control Closed loop electronic control Hydraulic drive

Application: Closed loop position control of a single axis with anlogue control AR1

AR1 analogue control

– P controller– D term or T1 term– Two ramp generators for each drive direction– Open loop/closed loop control switch– Cable break monitoring of command and actual signals

(at 4 to 20 mA)– Following error monitoring– Communication with PLC via opto-decoupled 24V inputs and

outputs– All parameter and function settings reproducible by means of

encoded and DIL switches

Actual position

Faultmonitor

Functional description for SVAR closed loop electronic control, type VTS 0940-2X

Valve I, U

RE 29 799/08.95 6/26 VTS 0940; VTS 0941; VTS 0942

1 23 4

FGGest.

NPa2

a1+

a2+

a1–

a2–

135

24

123456789

10

11121314151617181920

VTS0225 AR1

VF

VG

D

Fehler

EA

VTS06xx

NP

6789

10

12345

16171819202122

2324252627

282930

1112131415

VTS090x

NT

Betriebsspannung

34

SPS

I/O24 V

DA

p / Q

su,i

p / Q

12

222 50

1,5

235

145

8132

5

133

163

183

10

25

10TE 8TE 8TE

1 23 4

FGGest.

NPa2

a1+

a2+

a1–

a2–

135

24

123456789

10

11121314151617181920

VTS0225 AR1

VF

VG

D

Fehler

EA2

VTS0610

NP

6789

10

12345

16171819202122

2324252627

282930

1112131415

VTS090x

NT

Betriebsspannung

34

1TE = 5,08 mm

Unit dimensions: SVAR closed loop electronic control, type VTS 0940-2X (Dimensions in mm)

Connection diagram: PLC control, SVAR closed loop electronic control type VTS 0940-2X,valve and position measuring system

Command position

Actual position

Valve command signal andvoltage supply forintegral electronics

Valve current in servo valveswith mechanical feedback

FaultsRelease

Stop

Operating voltage

Valve with integral electronics

PLC

Forplug-inconnections

FaultsRelease

Stop

Operating voltage

VTS 0940; VTS 0941; VTS 0942 7/26 RE 29 799/08.95

SPS

I/O 24 V

D

A

NT3/NT4

=

AR1 VTS 0225

su,i

I/O

PDT1

PIDT1

XPL1 VTS 0223 EA1/EA2

pu,i

p / Q

A Bp

u,i


NT3 power supply



NT4 power supply






XPL1 closed loop pressure control and switching logic

Closed loop position control is switched to closed loop pressurecontrol when one of the following three conditions occurs:

1. Direct and at any time by means of PLC2. By means of externally produced limit signal (0 to 10V) for

the actual differential pressure3. By means of two internally produced limit signals (0 to 9,2

V) for the actual differential pressure– PIDT 1 controller– Ramp generator for command pressure– Matching of pressure measuring signals (differential input:

± 10 V, 0 to 20 mA or 4 to 20 mA) in drive cylinders withdifferent piston areas

– Cable break detection for pressure transducer (at 4 to 20 mA)– Optional function of externally produced limit signal (0 to 10 V)

or load compensation (0 to 10 V)

AR1 analogue control

– P controller– D term or T1 term– Two ramp generators for each drive direction– Open loop/closed loop control switch– Cable break monitoring of command and actual signals

(at 4 to 20 mA)– Following error monitoring– Communication with PLC via opto-decoupled 24V inputs and

outputs– All parameter and function settings reproducible by means of

encoded and DIL switches

Application: Closed loop position control of a single axis with switch to closed loop pressure controlled operation


Control andswitching logic

Valve I, U

Commandpressure

Faultmonitor

Command position

PLC

Actual pressure A

Actual pressure B

Actual position

RE 29 799/08.95 8/26 VTS 0940; VTS 0941; VTS 0942

SPS

I/O24 V

DA

p / Q

su,i

p / Q

1 23 4

FGGest.

NPa2

a1+

a2+

a1–

a2–

135

24

123456789

10

11121314151617181920

VTS0225

AR1

VF

VG

D

Fehler NP

6789

10

12345

16171819202122

2324252627

282930

1112131415

VTS090x

NT

Betriebsspannung

34

135

24

VTS0223

XPL1

NP-Ist NP-Soll

Perr.PR

P1 P2

pu,i

A pu,i

B

123456789

101112

131415161718192021222324

EA

VTS06xx 1

2

222 50

1,5

235

186

11432

5

133

163

183

10

25

10TE 8TE 8TE

1 23 4

FGGest.

NPa2

a1+

a2+

a1–

a2–

135

24

123456789

10

11121314151617181920

VTS0225

AR1

VF

VG

D

Fehler

EA2VTS0610

NP

6789

10

12345

16171819202122

2324252627

282930

1112131415

VTS090x

NT

Betriebsspannung

34

8TE

135

24

123456789

101112

131415161718192021222324

VTS0223

XPL1

1TE = 5,08 mm

NP-Ist NP-Soll

Perr.PR

P1 P2


Connection diagram: PLC control, SVAR closed loop electronic control type VTS 0941-2X,valve, position measuring system and pressure transducer


Command position

Actual position

Valve current in servo valveswith mechanical feedback

Valve command signal andvoltage supply for integralelectronics

Actual pressure A

Actual pressure B

Operating voltage

ReleaseStop

FaultsActual NP Com. NP

Commandpressure

PLC


Operating voltage

ReleaseStop

FaultsActual NP Com. NP

VTS 0940; VTS 0941; VTS 0942 9/26 RE 29 799/08.95

SPS

I/O 24 V

D

A

NT3/NT4

= PIDT1

XPL1 VTS 0223 EA1/EA2

p

p / Q

A Bp

u,i u,i

NT3 power supply



NT4 power supply






XPL1 closed loop pressure control and switching logic

Closed loop position control is switched to closed loop pressurecontrol when one of the following three conditions occurs:

1. Direct and at any time by means of PLC2. By means of externally produced limit signal (0 to 10V) for

the actual differential pressure3. By means of two internally produced limit signals (0 to 9,2

V) for the actual differential pressure– PIDT 1 controller– Ramp generator for command pressure– Matching of pressure measuring signals (differential input:

± 10 V, 0 to 20 mA or 4 to 20 mA) in drive cylinders withdifferent piston areas

– Cable break detection for pressure transducer (at 4 to 20 mA)– Optional function of externally produced limit signal (0 to 10 V)

or load compensation (0 to 10 V)

Application: PLC controlled drive of a single axis with switch to closed loop pressure controlled operation



0 to ± 10 V Controlled drive

0 to ± 10 V Command pressureIValve

PLC

Control andswitching logic

Actual pressure AActual pressure B

RE 29 799/08.95 10/26 VTS 0940; VTS 0941; VTS 0942

SPS

I/O24 V

DA

p / Q

p / Q

EA

VTS06xx

NP

6789

10

12345

16171819202122

2324252627

282930

1112131415

VTS090x

NT

Betriebsspannung

34

135

24

VTS0223

XPL1

pu,i

A pu,i

B

123456789

101112

131415161718192021222324

Perr.

12

NP-Ist NP-Soll

PR

P1 P2

222 50

1,5

235

145

8132

5

133

163

183

10

25

8TE 8TE 8TE

EA2

VTS0610

NP

6789

10

12345

16171819202122

2324252627

282930

1112131415

VTS090x

NT

Betriebsspannung

34

135

24

VTS0223

XPL1

2TE

1TE = 5,08 mm

123456789

101112

131415161718192021222324

NP-Ist NP-Soll

PR

P1 P2


Connection diagram: PLC control, SVAR closed loop electronic control type VTS 0942-2X,valve and pressure transducer


Valve command signal andvoltage supply for integralelecronics

Actual pressure AControlled drive command signal

Actual NP Com. NP

Operating voltage

Actual NP Com. NP

Operating voltage

Actual pressure B

Valve command signal


Commandpressure

PLC

VTS 0940; VTS 0941; VTS 0942 11/26 RE 29 799/08.95

1 23 4

FGGest.

NP

a2a1+

a2+

a1–

a2–

123456789

10

11121314151617181920

VTS0225

AR1

VF

VG

D

135

24

Fehler

135

24

123456789

101112

131415161718192021222324

VTS0223

XPL1

NP-Ist NP-Soll

Perr.PR

P1 P2

VTS 0940-2X and VTS 0941-2X PLC control and position measuring system

Interfaces: PLC control, SVAR closed loop electronic control type VTS 094_-2X,valve, position measuring system and pressure transducer

VTS 0941-2X and VTS 0942-2X PLC control and pressure transducer

<– + Command signal<– – Command signal<– + Actual signal<– – Actual signal–> Actual signal (4 to 20 mA)–> + 10 V–> + 15 V–> – 15 V–> GND–> GND

Voltage supply,e.g. for positionmeasuring system

<– + Command signal<– – Command signal<– – Actual pressure A<– + Actual pressure A<– – Actual pressure B<– + Actual pressure B<– + Variable limit or<– – load compensation–> Actual pressure 4 to 20 mA, max. load 500 Ω–> + 24 V–> GND–> GND

PLC signals ormessages

External + 24 V –>External 0 V –>Release –>Controlled operating mode –>Ramp generator 2 (a2) –>Reset error message –>Closed loop control active <–Position reached <–Common error message <–Internal + 24 V <–

External +24 V –>External 0 V –>Release 1 –>Release 2 –>Control release/Control ON –>Release AR 1(only VTS 0941) –>Reset cable break <–Limit generated <–Closed loop pressure ctrl active <–Cable break <–Pressure reached <–Actual pressure <–(0 to 10 V, max. 2 mA)

PLC signals ormessages

FaultsRelease

Stop

Actual NP Com. NP

RE 29 799/08.95 12/26 VTS 0940; VTS 0941; VTS 0942

EA2

VTS0610

NP

6789

10

12345

16171819202122

2324252627282930

1112131415

321

6

54

987

1211

10

1514

13

181716

212019

2423

22

272625

2928

30

15 … 24 V

0 V0…±10 V

+ 24 V0 V

+ 24 V0 V

0…±10 V0 V

0…±10 V

+ 15 V– 15 V

0 V0 …±10 V

0 V

EA1

VTS0609

NP~

6789

10

12345

16171819202122

2324252627282930

1112131415

BACD

321

6

54

987

1211

10

1514

13

181716

212019

2423

22

272625

2928

30

15 … 24 V

0 V0…±10 V

+ 5 V– 15 V+ 15 V

AC

b

1342

B

D a

12; 3

45; 6

12354

+ 24 V

0 V

EA2

VTS0610

NP

6789

10

12345

16171819202122

2324252627282930

1112131415

+ 24 V

0 V

VT 11073-1X

VT 11080-2X

4WRS6

78910

61211

Control(only VTS 0942)

EA 1 - VTS 0609

Control(only VTS 0942)

EA 2 - VTS 0610

Release

Release

Input/output card EA1 or EA2 and valve group E, F, G or DVTS 0940-2X and VTS 0941-2X

Input/output card EA2 with external amplifier VT 11080 for control valve 4WRS6...

Interfaces: Input/output card EA1 or EA2, valves

Valve release + 24 V

Valvegroup D

connection± 15 V

Valvegroup D

connection+ 24 V

Axisready

Axisready

9+19 = Command signal11+21 = Actual signal

19 = Command sig.21 = Actual signal

+ 24 V0 VReleaseCommand sig. ± 10 VCommand sig. 0 V

Free

Valv

e gr

oup

E, F

, G c

onne

ctio

n

VTS 0940; VTS 0941; VTS 0942 13/26 RE 29 799/08.95

27

31

29

L1

NPE

15a

15c

4ac

20ac

24ac

6ac

22ac

2ac

+ 24 V

~

– 15 V

M0

+ 5 V

– 24 V

+ 15 V

NT3 power supply cards were developed for use in SVAR closed loopelectronic control cartridge assemblies. They meet the qualityrequirements with respect to the supply voltages. The card is a Eurocard and provides the five output voltages required.Power supply and voltage stabilisation form one unit on the card.

Features:

– Regulator for all voltages

– All output voltages are short-circuit protected by fold-backcharacteristic

– Monitoring of all voltages and fault signals by means of arelay contact

H/A 2848NT3 power supply, type VTS 0908

Technical data:

Supply voltage U 230/115 VAC ± 10 %(Excess voltage protectionto VDE 0160)

Power consumption P 60 W

Cut-out mechanism IS Thermister 110 °Cin primary circuit

Output voltages UA ± 15 VDC ± 5 %; 0,4 A± 24 VDC ± 5 %; 0,2 A+ 5 VDC ± 5 %; 0,6 A

Relay data– Max. contact load I 2 A– Max. switching power P 30 W / 60 VA

Type of connection 50 + 3 pin terminal connector,DIN 41 612, standardised,form C

Card dimensions Euro card100 x 160 mm, DIN 41 494

Front plate dimensions– Height 3 HE (128,4 mm)– Width on conductor side 1 TE (5,08 mm)– Width on component side 7 TE

Permiss. ambient temp. t 0 to + 50 °C

Storage temperature t – 20 to + 70°C

Weight m 1,4 kg

For applications outside these parameters please consult us.

Voltagemonitor

Contact closed =voltages OK

Terminal connections:

NT3 power supply card, type VTS 0908

RE 29 799/08.95 14/26 VTS 0940; VTS 0941; VTS 0942

Betriebsspannung

715

2

100

165

186

8TE (40,3)

3HE

(12

8,4)

89

VTS0908

NT3

7

Operating voltage


1 = Supply voltage 230 VAC (50 to 60 Hz)2 = Supply voltage 115 VAC (50 to 60 Hz)

50 + 3 pin terminal connector DIN 41 612 = Sstandardised, form C(with leading safety contact)


VTS 0908 S 1X / *

Unit dimensions (Dimensions in mm)

Ordering code


VTS 0940; VTS 0941; VTS 0942 15/26 RE 29 799/08.95

15a

15c

4ac

20ac

24ac

6ac

2ac

+ 24 V

+ 15 V

– 15 V

+ 5 V

M0

+ 24 V

+ 24 V

0 V

0 V

NT4 power supply cards were developed for use in SVAR closed loopelectronic control cartridge assemblies. They meet the qualityrequirements with respect to the supply voltages. The card is a Eurocard and provides the three output voltages required.NT4 power supply cards are not suitable for use with amplifier outputstages B for servo valves with mechanical feedback.

Features:

– DC/DC converter

– Monitoring of all voltages and fault signals by means of arelay contact

H/A 4158/94NT4 power supply, type VTS 0909

Terminal connections:

ScreenScreen

Voltagemonitor

Contact closed =voltages OK

Technical data:

Supply voltage U + 24 VDC ± 10 %

Power consumption P 35 W

Cut-out mechanism IS T 400 mA in primary circuit

Output voltages UA ± 15 VDC ± 5 %; 0,35 A+5 VDC ± 5 %; 1 A

Relay data– Max. contact load I 2 ADC / 2 AAC– Max. switching power P 30 W / 60 VA

Type of connection: 50 + 3 pin terminal connector,DIN 41 612, standardised,form C

Card dimensions Euro card100 x 160 mm, DIN 41 494


Permiss. ambient temp. t 0 to + 50 °C

Storage temperature t – 20 to + 70°C

Weight m 1,4 kg



RE 29 799/08.95 16/26 VTS 0940; VTS 0941; VTS 0942

715

2

100

165

186

8TE (40,3)

3HE

(12

8,4)

89

VTS0909

NT4

7

+ 24 V

0 V

F1/T400 mA



*VTS 0909 –1X /


Ordering code

NT4 power supply, type VTS 0909

Operating voltage

VTS 0940; VTS 0941; VTS 0942 17/26 RE 29 799/08.95

Operating voltage UB ± 15 V, max. 150 mA

Differential inputs

– Command position Ui, Ri 0 to ± 10 V, 10 kΩ0 to 20 mA or 4 to 20 mA, load 500 Ω

– Actual position Ui, Ri 0 to ± 10 V, 10 kΩ0 to 20 mA or 4 to 20 mA, load 500 Ω

Analogue output (actual position) 4 to 20 mA (max. load 500 Ω)

Ramp time setting range t 0,2 s to 16 s ( 0,05 V/ms to 0,625 V/s)

Control signal inputs (fan in) + 15 to 24 V; 3,3 kΩ; opto-decoupled

Control signal outputs (fan out) + 15 to 24 V; max. 8 mA; opto-decoupled

Type of connection 96 pin terminal connector, DIN 41 612, form C

Card dimensions Euro card 100 x 160 mm, DIN 41 494

Front plate dimensions

– Height 3 HE (128,4 mm)– Width on conductor side 1 TE (5,08 mm)– Width on component side 9 TE


Storage temperature t – 20 to +75 °C

Weight m 0,21 kg

The AR1 electronics card is used within the SVAR system for closedloop position control. The card basically comprises closed loopposition control (PD or PT1 controller), ramp generator and monitor.

Features:

– PD or PT1 control

– Four adjustable ramp generators for the closed loop controlof following error

– Either "Open loop" or "Closed loop" operating modes

– Reproducible settings using digital encoded switches

– Monitoring of cable break of actual and command signallines and of valve cable (only for servo valves withmechanical feedback)

– Following error monitor

– Signal to PLC"Closed loop position control active"

H/A 4157/94AR1 closed loop position control, type VTS 0225


AR1 analogue closed loop position control, type VTS 0225

RE 29 799/08.9518/26

VTS 0940; VTS 0941; VTS 0942

u,iu

++

u,iu

&

PD

ui

4

2

5

3

6

11

12

13

14

101617181920

+ 24 V+ 10 V+ 15 V– 15 VGNDGND

Bu4

1

2

Bu2Bu3

J112

3c

3a

1c

J421

Bu11a

21c

19a

21a

17c

19cX3

+

–

+

–

1

2

S2

J2

J3

1 2 3–10V+10V

J5

J6

1 2 3–10V+10V

1

2S3

4

1S1

8

2

2

1S2

9

S6.1

S6.3S6.4S6.2

1 2 3 4

R1 7

a2–

a2+

a2

3 6

13/1415/1617/1819/20

11

S5

2

10

Bu5

1

R3

1

Bu6

X3

4ac6ac

28ac32ac

20c

11c

11a

9c

22c

15a

15c2

X2

1

7

8

9

17a

23a

23c

25a

153b

S11

2

+–

0,2…3,2 s

1…16 s

DVG/VF

X2

+ 24 V+ 15 V– 15 VGND

+ 5 V+ 15 V– 15 VGND

Block diagram and term

inal connections


F = On front plate

Additionalcard

Cable breakmonitor

Monitorlogic

Follow error

Faults F

0 V = Releaseof XPL 1

+24V PLC

Positionreached

Error message

Actual axis signal4 to 20 mAmax. load: 500 Ω

Offset

F

F

ControlledF

F

F

F

Velocity 2

Release

ReleaseF

F F

KB message from EA1

Closed loopcontrol output

F

F

Voltagesupply forpositionmeasuringsystem

Actual signal0 to 10 V0 to 20 mA4 to 20 mA

Reseterrormessage

0 V PLC

0 V = Releaseresidual velocityto EA1

Message"Valve cable break"from EA1

EA1

Common error message

Ramp 2 (a2)

F

Release

F

F

Reset/error message

Closed loopcontrol outputto EA1

Closed loopcontrol active

Closed loop/open loop control

Error messages:1 Actual signal cable break

2 Command signal cable break

3 Follow error

4 Valve cable break (KB)

Open loopcontrol

Commandsignal0 to 10 V0 to 20 mA4 to 20 mA

VTS 0940; VTS 0941; VTS 0942 19/26 RE 29 799/08.95

3HE

(12

8,4)

715

2

100

165

186

89

7

10TE (50,5)

1 23 4

FGGest.

NP

a2a1+

a2+

a1–

a2–

123456789

10

11121314151617181920

VTS0225

AR1

VF

VG

D

135

24

Fehler


*VTS 0225 –1X /

Mating plugs for front side terminal connections included.

Ordering code




ReleaseStop

Faults

RE 29 799/08.95 20/26 VTS 0940; VTS 0941; VTS 0942

The XPL1 electronics card is used within the SVAR system for closedloop pressure control. Logic switches closed loop position control toclosed loop pressure control when one of three conditions is met:

– Direct and at any time by means of the PLC when released bythe PLC at the same time

– By means of an externally generated limit signal (0 to 10 V)for the actual differential pressure

– By means of two internally generated limit signals (0 to 6,5 V)for the actual differential pressure

If the actual pressure limit is reached, the PLC is informed and the typeof control is automatically changed.

Features:– Command pressure either directly generated externally or via

a ramp generator with separate settings for the upwards anddownwards directions on the card

– Closed loop pressure control with PIDT1 characteristic

– Matching of pressure transducer to the various piston areas ofsingle rod cylinders

– External load compensation (± 10 V)

– Reproducible, digital settings

– Messages to PLC"Pressure control active""Pressure reached""Limit generated""Pressure transducer cable break"

– "Actual differential pressure" output (0 to 10 V)

H/A 4161/94XPL1 closed loop pressure control, type VTS 0223

Operating voltage UB ± 15 V; max. 150 mA

Differential inputs

– Command pressure ui, Ri 0 to ± 10 V, 10 kΩ0 to 20 mA, load 500 Ω

– Actual pressure ui, Ri 0 to ± 10 V, 10 kΩ0 to 20 mA or 4 to 20 mA, load 500 Ω

Analogue outputs (Actual differential pressure) 4 to 20 mA (max. load 500 Ω)and ± 10 V (max. 1 mA)

Ramp time setting range t 27 ms to 7 s ( 0,37 V/ms to 1,43 V/s)

Control signal inputs (fan in) + 15 to 24 V; 3,3 kΩ; opto-decoupled

Control signal outputs (fan out) +15 to 24 V; max. 8 mA total; opto-decoupled

Type of connection 96 pin terminal connector, DIN 41 612, form C

Card dimensions Euro card 100 x 160 mm, DIN 41 494

Front plate dimensions:

– Height 3 HE (128,4 mm)– Width on conductor side 1 TE (5,08 mm)– Width on component side 7 TE


Storage temperature t – 20 to + 75 °C

Weight m 0,21 kg


XPL1 closed loop pressure control card, type VTS 0223

VTS 0940; VTS 0941; VTS 094221/26

RE 29 799/08.95

uu

&

uu

uu

i u

uu

+ 24 VGNDGND

222324

1c1a

17c

21c

1413

2

6

S16.6+–

5 21a

27c11

9 25c

25a827a10

12 7b21 5b

347

19a19c

23a

1 17a

5c5a

1817–

+

S.16.3

–+

–+

16 3b3a15

7c20

7a19

S.16.1

S16.5X1X3

–10VS16.2

–10V

S16.4

NP-pB

NP-pAR2

R3

KBBu2

P3

1%

S16.7+ 5 V

BA&

Bu3

P1S12.4

I

Bu0

&

&

Bu1

Bu4 (+)Bu4 (-)

R1

S15.4

S15.1

≥1

0,3…11…2,95

27ms…7s 27ms…7s

13

2 J8

S13

21

S9.4

S10.4

0,1…13,5

I

P

T1

D

++

++

Bu5

1

2 3

J9

&

PR

P1P2

6 bit

S4 S14

S15.3

S5

S15.2

170mV…9,2V

S3

6 bit

170mV…9,2V

12

+

-

12

+

-

≥1

Bu4

24c

15c

15a

20c

4ac

32ac28ac

6ac

23c

22c

X1

10…80ms

+ 15 VGND– 15 V+ 24 V

EA1

∑

+– ∑

∑∑

∑


inal connections


X1 96 pin female connector

X3 24 pin plug on front side

KB Cable break monitor

BA Operating mode switch F = On front plateFor input signal 4 to 20 mAS16.2 or S16.4 ON

Release Release

Limit 2Limit 1

Release DI/Closed loopposition

F

Perr. F

Actual NP

F

Ext. switching signal /

+ 24 V PLC

Reset cable breakRelease P2Release P1

Analog. actual sig. 4 to 20 mAAnalog. actual sig. 0 to 10 VMessage "Cable break"Limit signal generated

F

F

Press. control ON

Press. control release

F

F

F

Configuration 4 to 20 mA

Actual pressure A

Message "Pressure reached"

Release closed loop pressure

GND PLC

Release digital integrator /

∆ pCom.

CNC/Closedlooppositioncontrol

Reset

Command NP

Closed loop pressure

Actual pressure B

F

F

F

∆ pAct ∆ pCom.

F

RE 29 799/08.95 22/26 VTS 0940; VTS 0941; VTS 0942

3HE

(12

8,4)

715

2

100

165

186

89

7

8TE (40,3)

135

24

123456789

101112

131415161718192021222324

VTS0223

XPL1

NP-Ist NP-Soll

Perr.PR

P1 P2



*VTS 0223 –2X /



Ordering code


Actual NP Comm. NP

VTS 0940; VTS 0941; VTS 0942 23/26 RE 29 799/08.95

Technical data for EA1:

Supply voltage U ± 24 V / to 200 mA± 15 V / 25 mA;regulated ± 5 %

Dither voltage USS ≤ 10 mV

Output stage output current Imax ± 60 mA / ±100 mA

Dither f 330 to 700 Hz

Differential input U 0 to ± 10 V

Ri 10 kΩ

Connections– Front side 30 pin/2 row

with screw connection– Connection side 64 pin terminal connector,

DIN 41 612, form C

Card dimensions Euro card100 x 160 mmDIN 41 494


Permiss. ambient temp. t 0 to 50 °C

Storage temperature – 20 to + 75 °C

Weight m Up to 0,35 kg (with plug),depending on type

Input/output cards EA1 and EA2 are used in the SVAR closed loopelectronic control for front panel signal line connection of inputs andoutputs.

The EA1 card is equipped with a valve output stage. The EA2 card isonly supplied without valve output stage.

In addition the following functions are featured:

– Direction dependent gain matching of the command signalwhen using a single rod cylinder with a differential arearatio

– Zero point setting (NP) of valve command signal

H/A 2850Input/output card EA1, type VTS 0609

Technical data EA2:

Supply voltage U + 24 V / 2 to 4 A(valve dependent)± 15 V / 25 mA

Differential input U 0 to ± 10 VRi 10 kΩ

Connections– Front side 30 pin/2 row

with screw connection– Connection side 64 pin terminal connector,

DIN 41 612, form C

Card dimensions Euro card100 x 160 mmDIN 41 494


Permiss. ambient temp. t 0 to 50 °C

Storage temperature – 20 to + 75 °C

Weight m Up to 0,35 kg (with plug),depending on connection


Input/output cards EA1 (type VTS 0609) and EA2 (type VTS 0610)

RE 29 799/08.9524/26

VTS 0940; VTS 0941; VTS 0942

+ 5 V

+ 24 V

+ 15 V

– 15 V

– 24 V

GND

14

15

BA4

BA3S+

S–

X1

UU

12

11

3

2

1

NP

16c

16a

18a

18c

26a

22a

24c22c

BA1

X1

BA2

4

5

1 2 3 4 5 6 7 8 9 10+15V-15V+5V

X2 X2

13

28

29

30

PIDU

I

=

≈U

s

4

3

5

9

19a

21a

23a

25a

9a

21c

23c

25c

26c

2ac

4ac

6ac

28ac

30ac

32ac

22212019

181716

10

9

8

7

6

27

23

24

25

26

A

B

C

D

B

C

D

E

~

J1

S1

1 2 3 4

BA

UU

4 bit

4 bit

2

1

K+

K–

9c

11a

AR1

XPL1

+ 5 V

– 15 V

+ 15 V

± 10 V

± 10 V

+ 15 V– 15 VGND

AR1

15c

15a


inal connections

EA1 input/output card, type VTS 0609

Free

Dither

Terminal strip for residualvelocity

Operating mode switch BA

Axisready

Direction dependent gain

Voltagesupply

Logic cablebreak

detection

Modulator/Demodulator(Additional

card)

Valve positionaltransducer (optional)

Torque motor

Valve command signal

Valvecommandsignal

Valveactualsignal

Valve cablebreak

Differentialamplifier


Valve outputstage

Plug only for VTS 0942-2X/…!

VTS 0940; VTS 0941; VTS 094225/26

RE 29 799/08.95

678910111224252627

15

14

UU

BA4

BA3

4 bit

4 bit

S+

S–

X1

K+

K–

UU

UU

24

23

3

2

1

NP

16 A

B17

D19

C18

E20

F21

22

28

29

30

16c

16a

18a

18c

26a

22a

24c

22c

BA1

X1

26c

BA2

1 2 3 4 5 6 7 8 9 0+15V-15V+5V

X2 X2

1 2 3 4

BA2ac

6ac

28ac

32ac

J1

AR1

XPL1

+ 5 V

+ 15 V

– 15 V

GND

+ 24 V

0 V

± 10 V

± 10 V

+ 15 V A– 15 V B

0 V CDEF

15c

15a

EA2 input/output card, type VTS 0610


inal connections

Valve release+ 24 V

Actualvalvesignal

Voltage supply

Differentialamplfier

Terminal strip for specialfunctions

Operating mode switch BA

Direction dependentgain

Axisready

FreeFreeFreeFree

Valve connectionInternal electronics± 15 V

Valvecommandsignal



Valve connectionInternal electronics+ 24 V

RE 29 799/08.95 26/26 VTS 0940; VTS 0941; VTS 0942

Bosch Rexroth AGIndustrial Hydraulics

D-97813 Lohr am MainZum Eisengießer 1 • D-97816 Lohr am MainTelefon 0 93 52 / 18-0Telefax 0 93 52 / 18-23 58 • Telex 6 89 418-0eMail [email protected] www.boschrexroth.de

The data specified above only serves to describethe product. No statements concerning a certaincondition or suitability for a certain applicationcan be derived from our information.The detailsstated do not release you from the responsibilityfor carrying out your own assessment andverification. It must be remembered that ourproducts are subject to a natural process ofwear and ageing.

715

2

100

165186

8TE (40,3)

3HE

(12

8,4)

89

7

EA1

VTS0609

NP~

6789

10

12345

16171819202122

2324252627282930

1112131415

8TE (40,3)

3HE

(12

8,4)

EA2VTS0610

NP

6789

10

12345

16171819202122

2324252627282930

1112131415


E = Input/output card EA1 withvalve amplifier output stage for

servo valve 4WS2EM6-1X/…F12…with mechanical feedback

F = Input/output card EA1 withvalve amplifier output stage for


G = Input/output card EA1 withvalve amplifier output stage for


Input/output card with output stage forservo valves with mechanical feedback (card EA1) = 09Input/output card forintegral valve electronics (card EA2) = 10

Series 20 to 29 = 2X(20 to 29; externally interchangeable)

*VTS 06_ _ –2X /



Ordering card

Input/output cards EA1 (type VTS 0609) and EA2 (type VTS 0610)

VTS 0940; VTS 0941; VTS 0942 27/26 RE 29 799/08.95




Notes

RE 29 799/08.95 28/26 VTS 0940; VTS 0941; VTS 0942




Notes

svar high response valve closed loop electronic control for

Documents